package com.zhiduan.crowdclient.util;

import java.math.BigDecimal;
import java.text.DecimalFormat;

/**  
 * @description  金额元分之间转换工具类  
 * hexiuhui
 */    
public class AmountUtils {    

	/**金额为分的格式 */    
	public static final String CURRENCY_FEN_REGEX = "\\-?[0-9]+";    

	/**   
	 * 将分为单位的转换为元并返回金额格式的字符串 （除100）  
	 *   
	 * @param amount  
	 * @return  
	 * @throws Exception   
	 */    
	public static String changeF2Y(Long amount) throws Exception{    
		if(!amount.toString().matches(CURRENCY_FEN_REGEX)) {    
			throw new Exception("金额格式有误");    
		}    

		int flag = 0;    
		String amString = amount.toString();    
		if(amString.charAt(0)=='-'){    
			flag = 1;    
			amString = amString.substring(1);    
		}    
		StringBuffer result = new StringBuffer();    
		if(amString.length()==1){    
			result.append("0.0").append(amString);    
		}else if(amString.length() == 2){    
			result.append("0.").append(amString);    
		}else{    
			String intString = amString.substring(0,amString.length()-2);    
			for(int i=1; i<=intString.length();i++){    
				if( (i-1)%3 == 0 && i !=1){    
					result.append(",");    
				}    
				result.append(intString.substring(intString.length()-i,intString.length()-i+1));    
			}    
			result.reverse().append(".").append(amString.substring(amString.length()-2));    
		}    
		if(flag == 1){    
			return "-"+result.toString();    
		}else{    
			return result.toString();    
		}    
	}    

	/**  
	 * 将分为单位的转换为元 （除100）  
	 *   
	 * @param amount  
	 * @return  
	 * @throws Exception   
	 */    
	public static String changeF2Y(String amount) throws Exception{    
		if(!amount.matches(CURRENCY_FEN_REGEX)) {    
			throw new Exception("金额格式有误");    
		}    
		return BigDecimal.valueOf(Long.valueOf(amount)).divide(new BigDecimal(100)).toString();    
	}    

	/**   
	 * 将元为单位的转换为分 （乘100）  
	 *   
	 * @param amount  
	 * @return  
	 */    
	public static String changeY2F(Long amount){    
		return BigDecimal.valueOf(amount).multiply(new BigDecimal(100)).toString();    
	}    

	/**   
	 * 将元为单位的转换为分 替换小数点，支持以逗号区分的金额  
	 *   
	 * @param amount  
	 * @return  
	 */    
	public static String changeY2F(String amount){    
		String currency =  amount.replaceAll("\\$|\\￥|\\,", "");  //处理包含, ￥ 或者$的金额    
		int index = currency.indexOf(".");    
		int length = currency.length();    
		Long amLong = 0l;    
		if(index == -1){    
			amLong = Long.valueOf(currency+"00");    
		}else if(length - index >= 3){    
			amLong = Long.valueOf((currency.substring(0, index+3)).replace(".", ""));    
		}else if(length - index == 2){    
			amLong = Long.valueOf((currency.substring(0, index+2)).replace(".", "")+0);    
		}else{    
			amLong = Long.valueOf((currency.substring(0, index+1)).replace(".", "")+"00");    
		}    
		return amLong.toString();    
	}    

	/**
	 * 分转为元，保留两位小数
	 * @param fee1
	 * @param fee2
	 * @return
	 */
	public static String changeF2Y(int fee1, int fee2){

		return String.format("%.2f", (fee1 + fee2)/100.0);
	}

	public static void main(String[] args) {    
		//        try {    
		//            System.out.println("结果："+changeF2Y("-000a00"));    
		//        } catch(Exception e){    
		//            System.out.println("----------->>>"+e.getMessage());    
		////          return e.getErrorCode();    
		//        }     
		//      System.out.println("结果："+changeY2F("1.00000000001E10"));    

		System.out.println(AmountUtils.changeY2F("1.33"));    
		try {  
			System.out.println(AmountUtils.changeF2Y("1322"));  
		} catch (Exception e) {  
			e.printStackTrace();  
		}  
		//        System.out.println(Long.parseLong(AmountUtils.changeY2F("1000000000000000")));    
		//        System.out.println(Integer.parseInt(AmountUtils.changeY2F("10000000")));    
		//        System.out.println(Integer.MIN_VALUE);    
		//        long a = 0;    
		//        System.out.println(a);    

	}    
}    